% arara: xelatex: { shell: yes, interaction: nonstopmode }
% arara: xelatex: { shell: yes, interaction: nonstopmode }
\documentclass{article}
\usepackage[pdf]{graphviz}
\begin{document}
\digraph[scale=0.5]{abc}{rankdir=LR; a->b->c;}
\end{document}
